/**
  * @param CRI  $repository
  * @param SCRI $singleRepository
  *
  * @return \Illuminate\View\View
  */
 public function index(CRI $repository, SCRI $singleRepository)
 {
     $categories = $repository->listCategories();
     $categories->each(function (Category $category) use($singleRepository) {
         $category->lastActivity = $singleRepository->getLatestActivity($category);
     });
     return view('categories.index', compact('categories'));
 }